/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS-IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

const btn = document.getElementsByTagName('button')[0];

btn.addEventListener('click', (_) => {
  fetch('http://localhost:3001/slow/long-task/data.json')
    .then((response) => response.json())
    .then((json) => {
      const h1 = document.createElement('h1');
      h1.textContent = 'Hello ' + json.year + ' World!';
      document.body.appendChild(h1);
    });
});
